NMR-spectrometer with sample exchanger
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United States of America Patent
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Sep 22, 1992
Grant Date -
N/A
app pub date -
Nov 21, 1990
filing date -
May 27, 1988
priority date (Note) -
Expired
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Abstract
In order to take NMR-spectrograms, it is necessary that the spins of the sample be arranged in a homogeneous magnetic field. For that purpose, NMR-spectrometers have a magnet arrangement (2) in the magnetic field of which is arranged a sampling head (5). When the spin-lattice-relaxation time T.sub.1 of substances to be examined lies in the range of hours, the spectrometer is unusable for hours due to the necessary prepolarization of the sample. The invention is aimed at solving this problem. A sample magazine (11) is arranged in the magnetic field generated by the magnet arrangement (2). It offers the possibility of exposing a larger number of samples to the magnetic field of the magnet (2) while simultaneously carrying out measurements. Since measurements of samples having long spin-lattice-relaxation times T.sub.1 require a considerable time, the capacity of a magazine arranged in the magnetic field is sufficient to ensure a practically continuous operation of the spectrometer, even when samples with long T.sub.1 are analysed. The design of the sample magazine (11) as a rotatable drum (21) arranged in the bore ( 1) of a cryomagnet is particularly appropriate for cryomagnets.
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- 15 United States
- 10 France
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Patent Owner(s)
- BRUKER BIOSPIN GMBH
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dupree, Raymond | Leamington Spa, GB | 1 | 9 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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